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Benjamin J. Brown
Researcher at University of Sydney
Publications - 41
Citations - 1435
Benjamin J. Brown is an academic researcher from University of Sydney. The author has contributed to research in topics: Quantum computer & Qubit. The author has an hindex of 18, co-authored 41 publications receiving 970 citations. Previous affiliations of Benjamin J. Brown include Imperial College London & Niels Bohr Institute.
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Quantum memories at finite temperature
TL;DR: In this article, a review summarizes and discusses the various theoretical attempts to find a workable scenario for a passive quantum memory, for which a suitably designed interaction Hamiltonian will naturally protect the coherence of low-lying states from decoherence induced by a thermal environment.
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Poking Holes and Cutting Corners to Achieve Clifford Gates with the Surface Code
Benjamin J. Brown,Katharina Laubscher,Markus S. Kesselring,Markus S. Kesselring,James R. Wootton +4 more
TL;DR: It is shown how all of the Clifford gates can be implemented with the planar code without loss of distance using code deformations, thus offering an attractive alternative to ancilla-mediated schemes to complete the Clifford group with lattice surgery.
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Fault-tolerant error correction with the gauge color code.
TL;DR: This work makes use of single-shot error correction to develop a simple decoding algorithm for the gauge color code, and it numerically analyse its performance, finding threshold error rates comparable to other leading proposals.
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Fault-Tolerant Thresholds for the Surface Code in Excess of 5% under Biased Noise.
TL;DR: This work introduces an efficient high-threshold decoder for a noise-tailored surface code based on minimum-weight perfect matching and obtains fault-tolerant thresholds in excess of 6% for a phenomenological noise model in the limit where dephasing dominates.
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The XZZX Surface Code
TL;DR: Focusing on the common situation where qubit dephasing is the dominant noise, a variant of the surface code—the XZZX code—is shown to have remarkable performance for fault-tolerant quantum computation and the error threshold matches what can be achieved with random codes for every single-qubit Pauli noise channel.